Power take-off drive



B. NIGHTENHELSER E1' AL. 2,192,146

Feb. 27, 1940.

" POWER TAKE'OFE DRIVE Filed Nov. 29, 1958 y bd; e r 1M a w N s i e u BJPatented Feb. 27, 1940 UNITED STATESv PATENT' ori-lcs lPOWER TAKE-OFFDRIVE nen Nirhfenneuer, wennen, ma mins sauna,

Y Noblesville, Ind;

' This invention relates to a power take-of! drive, and it consists 1ntheconstructions, arrangements and combinations herein described andclaimed.y

It is an `object of the invention to provide a 5 drive freadilyapplicable to rear end power take.

offs generally'associated with tractors of present-day constructions. fIt is also an object ofthe invention to provide a gear drive in whichthe final power take-oi! may be so positioned as to drive the take-offshaft etaiither in a clockwise or counter-clockwise direcon. f

It is a still further object of the invention to provide a novelconstruction of housing whereu byone side thereof may be dismantled forchange .of position of gears, while the other side is not interferedwith. f Additional objects, advantages and features of invention will beapparent from vv,the following Y zo 'description considered inconjunction with the accompanying drawing, wherein i l Figure l is a`fragmentary side elevation ofa tractor with our drive installed. 1

Figure 2 is atop plan view thereof. e as u n Figure 3 is an'enlarged topplan view rwith the casing cover removed.

Figure 4 is a side elevation chile ydrive iuml-y trating the mode ofattachment to therear axle n Vci the tractor. y so There is illustrateda tractor Il of conventional construction embodying a rear axle II,

f differential I2 and power take-oil' shaft I3, to l which our drive `isattachable, as will now be described. v

3s The drive is indicated by the reference character- II, and as shown,comprises a lower housing I5, divided into vthree separate gearcompartments, I6, I1 and Il. Iior support of the housing, a pair ofsupport bracket arms Il are o bolted to the sides of the compartments Il and Y I8, extended forwardiywbeneath the rear axle II of the tractorand thence forwardly to points beneath attaching brackets 2l upon thesides of the tractor, where they are suitably bolted as at 45 2i. AU-shaped collar 22 is suspended upon 4 either side of the differentialI2; the ends therekof passing through suitable apertures in a supportblock 2l beneath theV axle housing. and

through apertures in the arms Il. theends of the 50 collar 22 beingVthreaded for vreception of nuts 24 for securement of the arms to theaxle housing,

with consequent support of the drive unit.

'Ihe compartment I1 houses a bevel gear Il. the shaft 28 of which isJournaled in a bearing 21,

66 the shaft projecting outwardly of the housing and includes a splinedconnector 28 for attachment to the power take-off shaft I3 of thetractor. v

The compartment I1 also houses a pair of bevel gears I! and III in meshwith the gear 25, as clearly shown in Figure 3, the gears 29 and 30 6being keyed to respective shafts II and 32, the shafts extendingtransversely across into respective compartments I8 and I8 whererespective bevel gears 33 and '3l are keyed. -The shafts 3l and 32 willbe suitably journalled'in bearings as 10 desired.

From the description thus far given, it will be apparent .thatthe-power'takeoff shaft will inipart rotation to theshaft 26 withconsequent rotation of the gears 2l, 29, Ill, 33 and 34.

The compartments i6 and I8 are identical in construction, and compriseend bearings 3i for rotatably supporting a countershaft 3,8, thecountershafts lying in planes parallel with the power take-ofi' shaft i3and upon the countershafts 3| Il there is keyed a bevel gear 31,adapted'to mesh respectivelyA with gears 3l and, all of which is clearlyshown in -Figure 3. 'I'he countershafts project outwardly of thecompartments and have i'lxed thereto a pulley 38, affording a power I6 Itake-off for machinery to befdriven. Obviously,

the pulley 3l may bev supplanted by a universal joint where a positivedrive is desired, and since this is well understood, no illustration ofthe detail is believed necessary. I0 The housing I5 will vbe closed byatop housing Y 30 divided mediaiiy of its length as indicated at Il,andfwill be suitably bolted to the lower housing I5. By dividing the topsection in this manner; it will be possible 'to remove oneor both of ilthe top sections for interchange of the gears 31 f to either one side orthe other of the gears 33 and 3l, as indicated' in dotted lines.- Itwill be apparent that the positioning of the gearsy Il to one side orthe other of gears Il and I4 will produce clockwise or counter-clockwiserotation of the power take-off pulleys Il, which is often founddesirable, particularly with agricultural imple ments.'

The power take-ofi unit may be lled with oil a or other lubricant toeffect smoothrunning oI I the gears and shaft thereof.

While we have shown and described a preferred form of the drive, this isby way of illustration only, and Awe consider as our own 'all 'such 50 lmodifications in structure as fairly fail within the scope of theappended claims. Y

We claimz, l

1. A power take-ofi for tractors andthe like compartments, and

ment to a tractor, said housing having a pair of partitions defining amedial and end gear compartments, a shaft journalied in the medialcompartment and projecting therefrom for connection with a powertake-off of a tractor, a bevel gear on the shaft withinV thecompartment, a shaft journailed in each partition defining the medialcompartment and extended from the medial compartment to the nextadjacent end compartment, a ,bevel gear on'l eac-h end'of said shafts,-one of the gears o'f each shaft being inmesh with the rst named bevelgear, each of said end compartments having bearings lying in a planjepar allel to the power take-off shaftof a tractonna Y countershaftjournalled in` respective pairsfofbearings, a bevel gear xedto each ofsaidylast named shafts in mesh with each respective. gear,"

in the end compartments, a cover\for said compartments dividedtransverselyI of its-length whereby one or both portions of thecoverrnay be" removed 4for reversing the position of the countershaftsto effect meshing engagement of itsr'associatedbevel gear with one sideor the'-l other of the other bevel gear in respective end power take-01Tmeans on the countershafts.

2f. A: power take-off forV tractors andthe like?" comprising a housingkhaving means for attach-Y ment to a tractor, said housing havingpartitions defining three gear compartments, a shaft journailed in theVmedial compartment and having.,

means for connection with a power take-oir of a tractor, a bevel gear onthe shaft within the compartment, Va shaft journall'd in each partitionvdefining the medial compartment, a bevel gear on each shaft in meshywith vthe first named gear,` abevel gear on eachfnend of the lastnamedA ,shafts positioned vin the respective next ad-v jacentcompartment, a countershaft journalied in each of the remainingcompartments, said countershafts extending in planes parallel to thepower take-off shaft of the tractor, a bevel gear en ,each o f .,the.countershafts in'mesh with the .bevel gear of the respectivecompartments and a cover for vthe housing, said cover being dividedtransversely. -of its length, whereby one or both portions of the covermay be removed for revers-k -ing the positions of the countershafts tovmesh .,.their'associated.gear with-one side or the other :of itscompanionat -'bev ei1gear, and power take-V off means cin-` thecountershafts.

JUMUSBALLARD.

